<!DOCTYPE html>
<html>

<head>
  <title>${title}</title>
  <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
  <link rel="stylesheet" href="https://www.xcan.cloud/doc.css">
</head>

<body>
  <div id="toc">
    <p><strong>导读</strong></p>
    <ul id="toc-list"></ul>
  </div>
  <section>
